The invention discloses a wood-plastic material composite board for building materials, wherein the wood-plastic material composite board includes a wood-plastic matrix; the wood-plastic matrix is internally provided with tension bars, the lower surface of the wood-plastic matrix is bonded to the upper surface of a balance layer, and the upper surface of the wood-plastic matrix is bonded to the lower surface of a medium-alkali glass fiber mesh cloth layer; the upper surface of the medium-alkali glass fiber mesh cloth layer is bonded to the lower surface of a high density fiberboard layer; theupper surface of the high density fiberboard layer is bonded to the lower surface of a flame retardant layer; the upper surface of the flame retardant layer is bonded to the lower surface of an anti-static layer; the upper surface of the anti-static layer is bonded to the lower surface of an aluminum oxide wear-resisting layer. According to the wood-plastic material composite board for the building materials, through the interaction of the core layer wood-plastic layer, the first carbon fiber cloth layer, the second carbon fiber cloth layer, the first surface wood-plastic layer and the secondsurface wood-plastic layer, the comprehensive mechanical properties of the wood-plastic material composite board are improved, and the impact and flexural strength of the wood-plastic material composite board are improved.